sprite-generation

Use when reviewing image assets, markup, and CDN or build transforms related to Use image sprites where appropriate. Check encoded size, rendered size, loading strategy, and above-the-fold impact together.

Quality

81%

Does it follow best practices?

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Securityby

Passed

No findings from the security scan

Quality

Content

85%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is a lean, well-organized overview with a properly signaled one-level reference and clear task sequencing, but its inline Check/Fix/Explain guidance stays abstract with all executable detail deferred to the reference file.

Suggestions

Add one small inline concrete example (e.g., a 3-line CSS background-position snippet or a DevTools Network-tab check command) so the body is actionable without forcing a file read for the common case.

Tighten the light redundancy between the Quick Reference bullets and the one-line Check/Explain sections to make every token earn its place.

Dimension	Reasoning	Score
Conciseness	The body is lean: a one-sentence intro, four tight Quick Reference bullets, and single-line Check/Fix/Explain sections, with no padded explanation of concepts Claude already knows; only minor redundancy between Quick Reference and the one-line sections keeps it from being perfectly tight.	3 / 3
Actionability	The Check/Fix/Explain sections give direction but stay abstract ('Create CSS sprites for icons and small images, or migrate to SVG icons') with no inline code, commands, or copy-paste examples; the Code Review section is the most actionable but all executable detail is deferred to references/rule.md.	2 / 3
Workflow Clarity	The single review task is organized into a clear Check → Fix → Explain → Code Review sequence with well-labeled sections; per the simple-skills note, a single-purpose task with clear organization can score 3, and there is no batch/destructive operation requiring an inline feedback loop.	3 / 3
Progressive Disclosure	The body is a concise overview that explicitly signals a one-level-deep reference ('For full implementation details, code examples, and framework-specific guidance, see references/rule.md'), and that reference file exists and holds the implementation detail, matching the clear-overview-with-well-signaled-references anchor.	3 / 3
	Total	11 / 12 Passed

Description

77%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is specific and includes an explicit 'Use when' trigger, but embeds a rule-title fragment as its core trigger rather than natural user phrasing, weakening trigger-term quality and distinctiveness.

Suggestions

Rewrite the trigger around natural user phrasing (e.g., 'Use when the user mentions image sprites, CSS sprites, icon sprites, or wants to reduce image HTTP requests') instead of the verbatim rule title 'Use image sprites where appropriate'.

Narrow the scope framing so it is unmistakably sprite-specific, reducing overlap with broader image-performance skills.

Dimension	Reasoning	Score
Specificity	Lists several concrete review actions: 'reviewing image assets, markup, and CDN or build transforms' and 'Check encoded size, rendered size, loading strategy, and above-the-fold impact together', matching the multiple-specific-actions anchor.	3 / 3
Completeness	An explicit 'Use when...' clause states when to trigger and the checking actions state what it does, satisfying both what and when with an explicit trigger.	3 / 3
Trigger Term Quality	Relevant terms like 'image assets', 'markup', 'CDN', and 'build transforms' appear, but the core trigger is a verbatim rule-title fragment ('Use image sprites where appropriate') rather than natural user variations like 'image sprites', 'sprites', or 'CSS sprites', so common variations are missing.	2 / 3
Distinctiveness Conflict Risk	The sprite scope narrows the niche, but the broad 'reviewing image assets, markup, and CDN or build transforms' framing could overlap with other frontend image-performance skills, and distinctiveness leans on a rule-title fragment rather than crisp natural triggers.	2 / 3
	Total	10 / 12 Passed

Validation

93%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

Criteria	Description	Result
metadata_version	'metadata.version' is missing	Warning

	Total	15 / 16 Passed

Repository: thedaviddias/Front-End-Checklist
Path: skills/sprite-generation/SKILL.md
Commit: 48405aa

Reviewed: about 8 hours ago

Table of Contents

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